How we achieved the best Web Performance with Partial Hydration
At Spring, we are responsible for maintaining various different news media websites for our parent company, Axel Springer. One of our latest releases, welt.de, is the fastest news media website in Germany; one of our most sought after goals is to continually achieve the best performance possible and the reason for this is simple: better performance usually means a better user experience and thus a
Make your site’s pages instant in 1 minute
Amazon (PowerPoint, slide #15): 100 ms of latency resulted in 1% less sales. Google (video): 500 ms caused a 20% drop in traffic. Walmart (slide #46): a 100 ms improvement brought up to 1% incremental revenue. Mozilla: Shaving 2.2 seconds off page load time increased downloads by 15.4%. Yahoo: 400 ms resulted in a 5 to 9% drop in traffic. Cheating latency instant.page uses just-in-time preloading
Effectively managing memory at Gmail scale - HTML5 Rocks
Introduction While JavaScript employs garbage collection for automatic memory management, it is not a substitute for effective memory management in applications. JavaScript applications suffer from the same memory related problems that native applications do, such as memory leaks and bloat, yet they must also deal with garbage collection pauses. Large-scale applications like Gmail encounter the sa
An Introduction to the Resource Timing API
Andy Davies (@andydavies) is a freelance web performance consultant in the UK. When he's not helping clients to measure and improve the performance of their sites, or speaking about the importance of speed, he can probably be found down the bottom of the garden on his vegetable patch. In the 2011 Performance Advent Calendar, Alois Reitbauer introduced us to Resource Timing but at that point no bro
Actual JavaScript Engine Performance
JSMeter: Measuring JavaScript Behavior in the Wild showed that benchmarks are not representative of the behavior of real web applications. But lacking credible benchmarks, engine developers are tuning to what they have. The danger is that the performance of the engines will be tuned to non-representative benchmarks, and then programming styles will be skewed to get the best performance from the mi
ControlJS part 1: async loading | High Performance Web Sites
December 15, 2010 10:45 pm | 30 Comments This is the first of three blog posts about ControlJS – a JavaScript module for making scripts load faster. The three blog posts describe how ControlJS is used for async loading, delayed execution, and overriding document.write. The #1 performance best practice I’ve been evangelizing over the past year is progressive enhancement: deliver the page as HTML so
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mrdoob/stats.js: JavaScript Performance Monitor
darsa.in
Measuring the speed of resource loading with JavaScript and HTML5